"holes, k a. "
laboratory manual for national certificate: / k.a. holes - 1 ed. - uk : e u p 1960. - "xiii, 103p.; 22 cm." - technical college .
620. 72 hol
laboratory manual for national certificate: / k.a. holes - 1 ed. - uk : e u p 1960. - "xiii, 103p.; 22 cm." - technical college .
620. 72 hol